Tag: wave energy

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Questions Related to wave energy

Multiple choice physics sources of energy wave energy tidal energy wave power and tidal power

Arrange the following steps of conversion of ocean thermal energy into electricity, in a proper sequence.
(a) The vapour of ammonia or CFC is passed over the turbines of generators.
(b) The hot water from the ocean is used to vapourise the liquid like ammonia or CFC.
(c) Cold water from the ocean depths is used to cool the vapour again into liquid.
(d) This cold liquid is again vapourised and the process continues.

  1. b a c d

  2. c a b d

  3. c b a d

  4. a b c d
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The hot water in the ocean is used to evaporate liquids like ammonia or CFC. This vapour is used to rotate the turbines of the generator and the vapour is again cooled down to a liquid by using the cold water from the ocean depth. This cooled liquid ammonia or CFC is again vapourised and the above process continues.

Multiple choice physics sources of energy wave energy tidal energy wave power and tidal power

Tidal energy is a major source of energy due to the presence of large water bodies on the earth.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

While tidal energy is a source of energy, it is not considered a 'major' source compared to other renewables due to limited suitable sites and high infrastructure costs.

Multiple choice physics sources of energy wave energy tidal energy wave power and tidal power

_________ are used to produce energy in OTEC.

  1. Tidal energy

  2. Temperature difference between the different layers of water in ocean

  3. Ocean waves

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

OTEC stands for Ocean Thermal Energy Conversion, which specifically uses the temperature gradient between surface and deep ocean layers to generate electricity.

Multiple choice physics sources of energy wave energy tidal energy wave power and tidal power

Which of the following is not a form of oceanic energy?

  1. Energy from biomass

  2. Tidal energy

  3. Ocean thermal energy

  4. Solar energy
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solar energy is a primary source of energy that drives other processes, but it is not classified as a form of oceanic energy itself, unlike tidal, wave, or thermal energy.

Multiple choice physics sources of energy wave energy tidal energy wave power and tidal power

The oceans cover almost ...... percent of the surface of earth with water and act as a vast collector of ...... energy.

  1. $71$, chemical

  2. $97$, solar

  3. $71$, solar

  4. $17$, hydroenergy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Oceans cover approximately 71 percent of the Earth's surface and act as a vast collector of solar energy, which is stored as heat in the surface waters.

Multiple choice physics sources of energy wave energy tidal energy wave power and tidal power

Energy available from the oceans is:

  1. OTE

  2. sea-waves energy

  3. tidal energy

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Renewable energy obtained from the ocean is together termed as ocean energy. Thus, ocean energy can be classified into various categories such as ocean thermal energy, tidal energy and wave energy.

Multiple choice physics sources of energy wave energy tidal energy wave power and tidal power

The energy available due to the difference in the temperature of water at the surface of the ocean and at deeper levels is called

  1. tidal energy

  2. wind energy

  3. solar energy

  4. none of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The energy derived from the temperature difference between surface water and deep ocean water is known as Ocean Thermal Energy Conversion (OTEC).